FKIE_CVE-2021-38787

Vulnerability from fkie_nvd - Published: 2022-01-19 13:15 - Updated: 2026-06-17 04:02
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
There is an integer overflow in the ION driver "/dev/ion" of Allwinner R818 SoC Android Q SDK V1.0 that could use the ioctl cmd "COMPAT_ION_IOC_SUNXI_FLUSH_RANGE" to cause a system crash (denial of service).
References
cve@mitre.orghttps://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner%20R818%20SoC%EF%BC%9AION%20Driver%20Integer%20Overflow.mdBroken Link, Third Party Advisory
cve@mitre.orghttps://vul.wangan.com/a/CNVD-2021-49171Third Party Advisory
cve@mitre.orghttps://www.allwinnertech.com/index.php?c=product&a=index&id=92Product, Vendor Advisory
cve@mitre.orghttps://www.cnvd.org.cn/flaw/show/CNVD-2021-49171Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner%20R818%20SoC%EF%BC%9AION%20Driver%20Integer%20Overflow.mdBroken Link, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://vul.wangan.com/a/CNVD-2021-49171Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.allwinnertech.com/index.php?c=product&a=index&id=92Product, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.cnvd.org.cn/flaw/show/CNVD-2021-49171Third Party Advisory
Impacted products
Vendor Product Version
allwinnertech android_q_sdk 1.0
allwinnertech r818 *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:allwinnertech:android_q_sdk:1.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "355226B3-ADD7-494E-958A-991E1EEC1CA1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:allwinnertech:r818:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9E184CF7-CECA-4F3F-BBC9-B4624B137D13",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "There is an integer overflow in the ION driver \"/dev/ion\" of Allwinner R818 SoC Android Q SDK V1.0 that could use the ioctl cmd \"COMPAT_ION_IOC_SUNXI_FLUSH_RANGE\" to cause a system crash (denial of service)."
    },
    {
      "lang": "es",
      "value": "Se presenta un desbordamiento de enteros en el controlador ION \"/dev/ion\" del SDK Android Q versi\u00f3n V1.0 de Allwinner R818 SoC que podr\u00eda usar el cmd ioctl \"COMPAT_ION_IOC_SUNXI_FLUSH_RANGE\" para causar un bloqueo del sistema (denegaci\u00f3n de servicio)"
    }
  ],
  "id": "CVE-2021-38787",
  "lastModified": "2026-06-17T04:02:43.870",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.8,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2022-01-19T13:15:07.870",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Broken Link",
        "Third Party Advisory"
      ],
      "url": "https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner%20R818%20SoC%EF%BC%9AION%20Driver%20Integer%20Overflow.md"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://vul.wangan.com/a/CNVD-2021-49171"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Product",
        "Vendor Advisory"
      ],
      "url": "https://www.allwinnertech.com/index.php?c=product\u0026a=index\u0026id=92"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.cnvd.org.cn/flaw/show/CNVD-2021-49171"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link",
        "Third Party Advisory"
      ],
      "url": "https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/Allwinner%20R818%20SoC%EF%BC%9AION%20Driver%20Integer%20Overflow.md"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://vul.wangan.com/a/CNVD-2021-49171"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Product",
        "Vendor Advisory"
      ],
      "url": "https://www.allwinnertech.com/index.php?c=product\u0026a=index\u0026id=92"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.cnvd.org.cn/flaw/show/CNVD-2021-49171"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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